Influence different polishing systems on roughness and colour stability of chairside CAD/CAM blocks with laminate veneer thickness
Objective: The aim of this study was to evaluate the effect of different polishing systems on the colour stability of different laminate veneer blocks for chair-side CAD-CAM after ultraviolet (UV) ageing. Methods: About 240 sample (13 × 13 × 0.7) were prepared from four different CAD-CAM blocks IPS...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2022-03-01
|
| Series: | Journal of Applied Biomaterials & Functional Materials |
| Online Access: | https://doi.org/10.1177/22808000221086493 |
| _version_ | 1830413385398747136 |
|---|---|
| author | Rafat Sasany Göknil Ergün Kunt Mehmet Faruk Koca |
| author_facet | Rafat Sasany Göknil Ergün Kunt Mehmet Faruk Koca |
| author_sort | Rafat Sasany |
| collection | DOAJ |
| description | Objective: The aim of this study was to evaluate the effect of different polishing systems on the colour stability of different laminate veneer blocks for chair-side CAD-CAM after ultraviolet (UV) ageing. Methods: About 240 sample (13 × 13 × 0.7) were prepared from four different CAD-CAM blocks IPS e.max CAD (IP), IPS Empress CAD (IE), Mark II (M) and Lava Ultimate (LU)) with A1 shade. Each group was divided into five subgroups ( n = 12) according to the control (C) and four different polishing system: Sof-Lex (S), Edenta (E), Identoflex (I) and Zircon Brite (Z). Surface roughnesses (Ra) were measured by a profilometer before and after polishing. The baseline colour values were recorded according to the CIELab system. The colour coordinates (L*, a* and b*) of the samples were measured before and after UV ageing, and colour differences (ΔE 00 ) were calculated by using the CIEDE2000 colour difference formula. A two-way ANOVA and Tukey test methods were used to analyse the data (α = 0.05). Results: A significant interaction was observed between CAD-CAM blocks and polishing system ( p < 0.001). The higher Ra and colour difference was calculated in LU in the Z group after polished and the lower Ra and colour difference was calculated in the IP in the S group after polished. For the IP group, the glazing procedure showed higher Ra and ΔE values with Z group than polished S system, whereas there is no statistical differences. Conclusion: It is concluded that polishing with the Sof-Lex system improves significantly smoothness and colour stability. However, there is no success in using the Zircon Brite polishing system. |
| first_indexed | 2024-12-20T20:25:47Z |
| format | Article |
| id | doaj.art-938240e7078c433b9bb63265fab6579e |
| institution | Directory Open Access Journal |
| issn | 2280-8000 |
| language | English |
| last_indexed | 2024-12-20T20:25:47Z |
| publishDate | 2022-03-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Journal of Applied Biomaterials & Functional Materials |
| spelling | doaj.art-938240e7078c433b9bb63265fab6579e2022-12-21T19:27:29ZengSAGE PublishingJournal of Applied Biomaterials & Functional Materials2280-80002022-03-012010.1177/22808000221086493Influence different polishing systems on roughness and colour stability of chairside CAD/CAM blocks with laminate veneer thicknessRafat Sasany0Göknil Ergün Kunt1Mehmet Faruk Koca2Prosthodontics, Researcher, Samsun, TurkeyDepartment of Prosthodontics, Faculty of Dentistry, University of Ondokuz Mayis, Samsun, TurkeyDepartment of Periodontology, Faculty of Dentistry, University of Ondokuz Mayis, Samsun, TurkeyObjective: The aim of this study was to evaluate the effect of different polishing systems on the colour stability of different laminate veneer blocks for chair-side CAD-CAM after ultraviolet (UV) ageing. Methods: About 240 sample (13 × 13 × 0.7) were prepared from four different CAD-CAM blocks IPS e.max CAD (IP), IPS Empress CAD (IE), Mark II (M) and Lava Ultimate (LU)) with A1 shade. Each group was divided into five subgroups ( n = 12) according to the control (C) and four different polishing system: Sof-Lex (S), Edenta (E), Identoflex (I) and Zircon Brite (Z). Surface roughnesses (Ra) were measured by a profilometer before and after polishing. The baseline colour values were recorded according to the CIELab system. The colour coordinates (L*, a* and b*) of the samples were measured before and after UV ageing, and colour differences (ΔE 00 ) were calculated by using the CIEDE2000 colour difference formula. A two-way ANOVA and Tukey test methods were used to analyse the data (α = 0.05). Results: A significant interaction was observed between CAD-CAM blocks and polishing system ( p < 0.001). The higher Ra and colour difference was calculated in LU in the Z group after polished and the lower Ra and colour difference was calculated in the IP in the S group after polished. For the IP group, the glazing procedure showed higher Ra and ΔE values with Z group than polished S system, whereas there is no statistical differences. Conclusion: It is concluded that polishing with the Sof-Lex system improves significantly smoothness and colour stability. However, there is no success in using the Zircon Brite polishing system.https://doi.org/10.1177/22808000221086493 |
| spellingShingle | Rafat Sasany Göknil Ergün Kunt Mehmet Faruk Koca Influence different polishing systems on roughness and colour stability of chairside CAD/CAM blocks with laminate veneer thickness Journal of Applied Biomaterials & Functional Materials |
| title | Influence different polishing systems on roughness and colour stability of chairside CAD/CAM blocks with laminate veneer thickness |
| title_full | Influence different polishing systems on roughness and colour stability of chairside CAD/CAM blocks with laminate veneer thickness |
| title_fullStr | Influence different polishing systems on roughness and colour stability of chairside CAD/CAM blocks with laminate veneer thickness |
| title_full_unstemmed | Influence different polishing systems on roughness and colour stability of chairside CAD/CAM blocks with laminate veneer thickness |
| title_short | Influence different polishing systems on roughness and colour stability of chairside CAD/CAM blocks with laminate veneer thickness |
| title_sort | influence different polishing systems on roughness and colour stability of chairside cad cam blocks with laminate veneer thickness |
| url | https://doi.org/10.1177/22808000221086493 |
| work_keys_str_mv | AT rafatsasany influencedifferentpolishingsystemsonroughnessandcolourstabilityofchairsidecadcamblockswithlaminateveneerthickness AT goknilergunkunt influencedifferentpolishingsystemsonroughnessandcolourstabilityofchairsidecadcamblockswithlaminateveneerthickness AT mehmetfarukkoca influencedifferentpolishingsystemsonroughnessandcolourstabilityofchairsidecadcamblockswithlaminateveneerthickness |